private Element _getElementById(Node topElement, string id)
{
if (topElement.nodeType == enumNodeType.ELEMENT)
{
Element element = (Element)topElement;
if (element.hasAttribute("id"))
{
string idvalue = element.getAttribute("id");
if (idvalue == id)
{
return(element);
}
}
}
foreach (var item in topElement.childNodes.item)
{
Element returnelement = _getElementById(item, id);
if (returnelement != null)
{
return(returnelement);
}
}
return(null);
}
private void _getElementByAttribute(Node topElement, HTMLCollection collection, string AttributeName)
{
if (topElement.nodeType == enumNodeType.ELEMENT)
{
Element element = (Element)topElement;
if (element.hasAttribute(AttributeName))
{
collection.Add(element);
}
}
foreach (var item in topElement.childNodes.item)
{
_getElementByAttribute(item, collection, AttributeName);
}
}
private void _getElementByClassName(Node topElement, HTMLCollection collection, string classnames)
{
if (topElement.nodeType == enumNodeType.ELEMENT)
{
Element element = (Element)topElement;
if (element.hasAttribute("class"))
{
string classvalue = element.getAttribute("class");
if (!string.IsNullOrEmpty(classvalue))
{
string[] classlist = classnames.Split(' ');
bool matched = true;
foreach (var item in classlist)
{
if (!classvalue.Contains(item))
{
matched = false;
break;
}
}
if (matched)
{
collection.Add(element);
}
}
}
}
foreach (var item in topElement.childNodes.item)
{
_getElementByClassName(item, collection, classnames);
}
}